A Primary Six pupil who was at the top of her class jumped to her death from her Tuen Mun home yesterday on the eve of her 12th birthday - the day she was to find out which secondary school she had been assigned to. Chiang Man-yee, a student at Tuen Mun Government Primary School, left a note in her 23rd-floor apartment at Tai Hing Garden which said she was under constant intense pressure to study. The girl was found by a security guard outside the Tsun Wen road building shortly before 6.30am. She was taken to Tuen Mun Hospital where she was declared dead. Yesterday, one of her classmates said that Man-yee had said she was unhappy because she was under constant pressure to study and was not allowed much time to play or to go out. School principal Tong Mui-fan described Man-yee as 'an academic achiever' who was the top student in her class and ranked sixth in the Primary Six level. She said students and teachers were very shocked by her death. The principal said Man-yee got into the New Territories' Heung Yee Kuk Yuen Long Secondary School - her first choice. Nearly 60 per cent of 81,855 primary school graduates were assigned to their first-choice of school, the Education and Manpower Bureau said. Ms Tong said educational psychologists and school development officers had offered counselling to grieving students and teachers, and advisories would be sent to parents about how to counsel children with emotional problems. Man-yee was the 12th student to kill herself this academic year. Fourteen students committed suicide in the last school year and 19 students in 2000-01.